Product Description
OSY-1 Supervisory Switch with Plastic Cover
The TEWASPRAY OSY-1 supervisory switch is used to monitor the open position of an OS&Y (outside screw and
yoke) type gate valve. OSY-1 supervisory switch shall be installed on each valve as designated on the
drawing and/or as specified herein, Switches shall be mounted so as not to interfere with the normal
operation of the valve and shall be adjusted to operate with two revolutions of the valve control or when
the stem has moved no more than one-fifth of the distance from its normal position.
Supervisory
switch shall have one form C contacts, switch contact rating 10.1Amps at 125/250VAC, 2.0Amps at 24 VDC.
Description:
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